Drill.



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cifbzen j and 5 tain mw and u hh' me :UHQ The pl'esel'lg inv in' 10 although i The p ts in 3 xt-un of th e stlfuctl l si ly @it justin he drill co1 f5 drill spindle.

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cation1 n )elle dm 'lgue collet 3@ im du F10'. is; ik new m y "ne openings in the wall oit said socket, said keys being dispose-il in the grooi'ed ways ot said drill carrying' member and provided. nt thelowor end thereof with notches, an adinsting nut carried by said notches, the lower portion of eiidnieinber beine; screw threaded So to be engaged by :Said adjusting nut for adjusting said member longitudinally ot the spindle, all roaetii'ig substantially ne described for the purpose specified.

3. in n' drill, the combination oiE :i spindle, driving eonnectioiiev thereof, a, socket in the lower end oli-said spindle, a drill carrying member slidable longitudinally in said socket, means `for preventing the rotation ol said member relative to said spindle`r :in adjusting nut carried by said spindle. said nut beingr 'tree to rotate on said spindle and lined against longitudinal movement relative thereto, the lower portion ot' `said drill carrying member being screw threaded so as tothe engaged by Huid adjusting' nut forzadjnsting said men'iber iongitinlinally ol the spindiin all (enacting substuntially as described tor the purpose sgierilied.

ai, in a drill` the 'ombination oi a Spindle, driving` Connections therefor, Said spindle having` a socket in its; iower end, a drill carrying' member slidable longitudinally in said s0i';l{et,'ineans between said drill carrying member and the wall ot the socket ior preventing rotation ol said drill rari-ying member relatively to the socket, a rota table member supported by said means and engag ing said drill carrying' memberf LSaid rotatabie member adapted upon rotation to more Said drill carrying: n einher longitudinally l within the socket and holdiingr the drill earim member againet longitudinal more nient in either direction in all of the angular positions that said rotatable member may SSUlle.

5. In a drill, the combination of a spindlel` drivin@F connections therefor, said spindle socket and holding` the drill rarrying' inem- Y ber against longitudinal movementin either direction in all ot the angular positions that said rotatable member may assume, substantially as described. l. ln Combination,

a spindle having a Socket, a drill *arrying member adapted to said socket, a key and Ice iwvay connection between the said member and the wall of the Socket to prevent relative rotation between said drill 'ai-ryingi' member and the socket, said drill carrying' member being eX` ternally screw threaded and a rotatable member held at one fixed point against aXial movement relative to the socket and screw threaded to engage the external threads 0n the drill carrying member, `said rotatable member holding the drill carryingI member against longitmlinal movement in either direction in all the angular positions ot said rotatable member, substantiallwvv as described. 

